Sheet-metal culvert.



flNfTED STTES .PATENT FIPTQE.

JTOHN H.. DEAN, OF BIRMING-HAVI, .LABAWIA5 ASSIGNOR OF ONE-THIRD TO SOLO'N JACOBS l.AND ONE-THIRD TO HABRY 0. BEBNARD, BOTH OF BIRMINGHAM, ALA- BAMA.

SHEET-METAL CULVERT.

mamos.

Specification of Letters Patent.

Patented June 20, 1916.

To all whom it may conocrn:

Be it known that I, JOHN H. DEAN, a citizen of the United States, residing at Birmingham, in the county of Jefferson and State of Alabama, have invented certain new and useful Improvements in Shoot-Metal Culverts, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to sheet metal culverts or pipes to be used as drains, aqueducts, or thelike, and more particularly to an improved means for connecting together the adjacent longitudinal edges of culvert sections. f

The principal object of the invention is to provide a metal connecting strip of such shape and construction that in its engagement with adjacent longitudinal edges of a culvert section, it completely covers and protects said edges and thereby serves in a great degree to prevent the metal of the culvert section itself from deterio-rating due to rust and corrosion, which necessarily prolongs the life of the culvert.

A further object of the invention is to construct the connecting strip* in such a manner that it is adapted to receive and hold the adjacent longitudinal edges of the culvert section in overlapped relation one with the other, in which position said overlapped edges and the connecting strip are welded together.

Further objects and advantages will appear in the following description, it being understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims. f

I have illustrated my invention in the accompanying drawings in which Figure 1 is a side elevation'of a culvert section showing my improved connecting Strip applied to adjacent longitudinal edges of the culvert section; Fig. 2 is a transverse sectional view taken on the line 2-2 of Fig.

1; Fig. 3 is a side elevation of a portion of a culvert section, showing 4the corrugations of the same arranged in spiral forma.- tion, and also showing the connecting strip applied to the overlapped portion of the longitudinal edges of said section; Fig. 4

is a side elevation of a portion of a culvert section made up of complementary. half sections, and illustrating a connecting str1p 0n each side of said culvert for fastening ad'Jacent longitudinal e'dges together; Fig. 5 is a transverse sectional view of the same taken on line 5-5 of Fig. el, and Fig. 6 is a detail sectional view taken on the line (S G of Fig. 2.

In the construction of culvert sections heretofore known, the metal sections which go to make up theV completed culvert have been provided with a number of eXposed edges, and. furthermore the sections themselves have been punched with holes or out in other Ways for receiving bolts or some sort of fastening device, all of which cutting away `or punching of the metal and the eX- posed edges referred to, invites rust and corrosion, which in time materially disturbs the vitals of the metal sections. In the present invention, however, no portion of the metal is cut away or punched and the exposed longitudinal edges of the metal sections are covered and protected by ,a metal Vstrip which is so shaped to receive said edges and which also serves as a means for connecting adjacent longitudinal edges of the culvert sections together, said edges and metal strip being Vwelded together as heretofore referrcd to.

Referring to Fig's. 1, 2 and 8 of the drawing, 1 indicates a corrugated sheet metal culvert section made from a single sheet of corrugat'ed metal, said sheet or blank being rolled into tubular form and having the longitudinal edges 2 and 3 thereof overlapped as clearly shown. These overlapped edges which areto be connected together to form a completed culvert section, have heretofore been left exposed and connected together by bolts or other similar' fastening devices. It

thinner gage metal thanthe metal of the cul- V.

vert section itself, and when such strip has been arranged in proper position for con- V and preferably the stripgis welded to the i .culvert sectl i necting adjacent longitudinal edges of a culvert section together,-the strip and said longitudinal edges are welded one? to the other the culvert section. 1

Themetal strip as shown in theV drawing is welded to the overlapped edges at points arranged at intervals throughout its length,

convex corrugations of Vthe culvert section. It is to be understood, however, that the metal strip may be welded to the longitudinal edges of the culvert section along its entire length if desired. V

In Fig. 3 of the drawing the metal welding strip is shown applied to the longitudinal'edg'es of a culvert section having corrugations of spiral formation, and in this forrn4 of the invention the Strip Vis shown covering only the overlapped portion of said longitudinal edges, although saidstrip may be extended to cover the portion of the longitudinal edges which is not overlapped.

Referring to Figs. 4: and 5 of the drawing, the'culvert section is shown of the nestable type, wherein it is made up of complementary sections 5V and 6, and in this form of the invention, two strips 4 are used, one arrangedon each side of the culvert section for connecting andprotecting the adjacent longitudinal edges of l`said complementary sections. f i v i v Having thus .described my, invention, what I claim and desire' to secure by Letters Patent is V V i 1. A'V'sheet metal culvert comprisingwa Vmetal blank having'V its longitudinal edges overlapping, and a protecting strip covering both longitudinal :edges for practicallyV their entire length, said' strip being welded o to the overlapped portions of the culvert.

- 2. A culvert section having its longituof both longitudinal edges. f v i 8. A culvert sectionl having itslongitudinal edges overlapped, and a metal strip coveringboth longitudinal edges for practically Vtheirentire length. i i

. 4:..A tran'sversely corrugated culvert section having its longitudinall edges overlapped, and av protecting strip'S-shaped vin entire length. i

'on having longitudildinal edges overlapped, and a protecting. strip covering practically the entirelength tion havingV its longitudinal edges overlapped, and a protecting strip S-shapedincross section and' also transversely;V corrugated for cover-ingthe longitudinal edges'of i' lsaid culvert section for Vpractically their en-1 cross section for, covering the-longitudinal o edges of said culvert for practically their' nal edges overlappcd, and a protecting Strip S-shaped in crosssection for covering the' longitudinal edges of saidculvert for pracv tically their entire length, said Strip and longitudinal edges welded together.

6.-A culvert section including `a transversely corrugated body portionV having longitudinal edges thereof overlapping, and a protecting strip covering adjacent longitudinal edges of the culvert section for practically theirV entire. length and corrugated to conform to the corrugations in the body portion, said longitudinal edges and the protecting strip being welded together.

7 v culvert section includingV a transversely corrugated body portion having lonv Vgitudinal edges thereof overlapping, and a protecting strip covering adjacent longitudinal edges of the culvert section for practically their entire length and corrugated to conformto the corrugations in the body portion, said longitudinal edges and the protecting strip being welded together at points intermediate Vtheir length. i i

' 8. AV transversely corrugatedculvert sec- .tion having its longitudinal edges. overlapped, ,and `a protecting stripV covering the longitudinal edges of the culvert section for practically' their entire length and-.corru- V gated to conform to the ycorrugations in `the section, said protecting strip being welded to the convex corrugations of. said culvert section.

9. A sheetjrnetal culvert comprifsing a metal blank rolled intotubular form and having Vits longitudinal edges Voverlapped, o

and a protecting strip covering practically the entire length ofboth longitudinal edges and welded thereto. V

V10. VA transverselycorrugatedculvert se`c-. i

tion havingits longitudinal edges over-' lapped,-and a transversely corrugated protecting strip for covering practically the ensaid culvert.V 11. vA transve'rselycorrugated culvert sectire length. v

of two witnesses.

Vvitnesses: i.

. J. M. W. CoonRAN, o

S. REYNoLDs.

V tire length Iof both longitudinal e'dgesof'`V i v V i i-of vIn testimony vwhereof I have affixedmy 7 .Signature in presence f JOHN H. DAN.

(topics et this paint may be obtainedror flve cents each; by adres'sing'the'Gommissioxer otrratutl i wuhlggtompjl' V V V 

